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DIVIDED TUBULAR STEAM GENERATOR.

No. 11,025. Pat ent-ed June 6,1854.

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A.\B.LATTA. DIVIDED TUBULAR STEAM GENERATOR.

No. 11,0Z5 Patented June 6, 1854.

UNITED STATES PATENT OFFICE.

ALEXANDER B. LATTA,

OF CINCINNATI, OHIO.

IMPROVEMENT IN STEAM-GENERATORS.

Specification forming part of Letters Patent No. 1 1,025, dated June 6,1854.

To all whom, it may concern.-

Be it known that I, ALEXANDER B. LATTA, of Cincinnati, in the county ofHamilton and State of Ohio, have invented a new and useful Improvementwhich I denominate a Divided Tubular Generator, which is described asfollows, reference being had to the annexed drawings of the same andmaking part of this specification.

In Figure lis the plan showing the outside of the firebox and cover withthe opening to attach the smoke-pipe. Fig. 2 is the front elevation withthe fire-box removed partly, so as to see the coil inside. The firstpipe commences at A,where it comes through the firebox, then continuesback and forth for some distance, then divides into two pipes. Afterascending some distance it subdivides into four pipes, or any othernumber that maybe desired. At the top of the steam-chamber of thefire-box the pipes B B B B come out and are attached steam-tight to thesteam-box, into which they discharge the steam. The little project-ioncast on the top of each one of the turns, with a hole through, is forthe purpose of passing a bolt through to fasten the ends to the insideof the lire-box. Fig. 3 is a side elevation showing the side of thecoil, fire-box, (itch Fig. 4 is section on A B, Fig. 3, showing thepipes as they appear on top. Fig. 5 is drawn out to show what the pipewould look like if it were-straightened out. This will give a correctidea of the manner in which it is constructed. The first section is inone pipe, and then divides into two, then subdivides into tour. sectionto be ten feet long, it would have seventy feet of pipe in. it. It willbe seen that the steam has only thirty feet to travelthat is, intimebecause in the last two sections it passes through both pipes at thesame time. This illustration will serve to give the true nature of theimprovement.

VVhat I claim is- The dividing of the coil or coils, commencing withone, then dividing into two, and then subdividing into four or any othernumber, as shown and described, or any equivalent device. d

A. B. LATTA.

Attest:

W. CHEDSEY, J os. SERODINA.

Thus, suppose each

